Sash lock and lift.



W. JANSEN. SASH LOGK AND LIFT. APPLIoATIoN FILED 11,111.13, 1911.

1,026,747'. Patented May21,1912.

COLUMBIA PLANODRAPH Cu.. WASHINGTON. l). c.

WILLIAM JANSEN,

OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS & WESILAKE COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS'.

SASI-I LOCK AND LIFT.

Specification of Letters Patent.

Patented May 21, 1912.

Application led March 13, 1911. Serial No. 614,192.

.To all whom it may concern:

Be it known that I, WILLIAM JANSEN, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Sash Locks and Lifts, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to devices for locking and for raising and lowering window sash, and is intended especially for use in connection with car windows and is generally of the type known as flush locks, that is to say, a lock which with its casing is housed within or mortised into the sash rail.

The object of the invention is to provide a simple and convenient device of this character, in which a spring-advanced bolt is withdrawn by upward or downwardpressure upon a sliding frame, which also serves as the grip member for raising and lowering the'sash.

The invention consists of a structure such as is hereinafter described, and as illustrated in the accompanying drawings, in whichvFigure 1 is a det-ail elevation, partly in section, of a window casing and sash with a pair of the improved locks applied thereto; Fig. 2 is a vertical longitudinal section of the lock; Fig. 3 is a sectional view of the same on the line 3-3 of Fig. 2; Fig. 4 is a sectional view of the lock on the broken line 4-4 of Fig. 2; and Fig. 5 is a detail perspective of the lock, partly in elevation, partly in section, and partly broken away.

There is shown at 10 a portion of a window casing, and at l1 a portion of a window sash. The housing of the lock comprises a back plate 12 and an apertured face plate 13, suitably spaced apart, as by means of an end wall 14, and studs 15, 16, which may be integral with one of the plates, these part-s being united by means of screws, as shown. This housing is adapted to be mortised into the bottom rail of the sash, its face plate 13 being flush with the surface thereof. The back plate 12 projects forwardly from the bottom of the housing, this extension being provided at its outer end with an upstanding flange 17, which carries an apertured boss 18, forming afbearing for a bolt which, as illust-rated, comprises a head 19 fitting within the aperture of the boss and to which is attached a stem 20,

,ets in the casing.

which Yprojects outwardly through the side edge of the sash for engaging suitable sock- The bolt may also be provided with a tail-piece 21, playing through an aperture in a cross wall 22 of the housing. The outward movement of the bolt is limited by the engagement of lateral shoulders 23 thereon with the flange 17.

A three arm lever 24 rests upon the eX- tension of the back plate 12, two of its arms 25, 26, being fulcrumed respectively on bosses 27, 28, carried by the back plate and being located adjacent the flange 17 and at opposite sides of the bolt-head 19. The third arm 29 of the lever extends backwardly in line with the bolt. Studs 30, 31,

rising from the lever arms 25, 26, bear baclrwardly against studs 32, 33, which project laterally from the bolt-head. The oscillation of the lever 24 about either of the fulcrum points 27, 28, will therefore force the bolt backward against the resistance of a spring 34 which normally holds the bolt forward.

As thus far described the lock does not differ essentially from that of another application led by me with this one. In the present instance, however, a special form of sash lift and latch control is provided. Housed within the casing and between the plates 12, 13, there is an oblong rectangular grip and controlling member 35, the ends of which are in sliding engagement with vertical guide Hanges 36, 37, the latter of which is apertured to accommodate a longitudinally slotted boss 38, which engages by its slot a stud 39 set in the arm 29 of the lever 24. The width of the member 35 is a little less than the width of the aperture in the plate 13, so that when the fingers are inserted in this aperture for the purpose of veither raising or lowering the sash they will bear upon one or the other side of the member 35. The initial pressure will cause this member to slide in its ways, thus rocking the lever 24 and withdrawing the bolt. Continued pressure for moving the sash will, of course, hold the bolt in its withdrawn position. As soon as the pressure is released,. the bolt is thrown forward by the spring and the member 35 is carried to its central position.

I claim as my invention- 1. In a lock, in combination, a 'chambered` casing having an apertured face plate, a reoiproeable bolt carried by the easing and pro- Y jeeting beyond the end thereof, a grip memand a cross bar, and operative connection be-Y tween the grip member and the bolt.

2. In a lock, in combination, a chambered easing having an apertured face plate, a reoiprooable bolt carried by the easing and projecting beyond the end thereof, a grip member housed Within the casing and slidable transversely of the bolt axis, such member comprising two Enger pieces disposed adjacent the sides of the face plate aperture and a cross bar, a lever having ulerum points on either side of the bolt and being in longitudinal engagement with the bolt, the power arm of the lever engaging the cross bar of the grip member.

WILLIAM J ANSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, '.D. C. 

